#171879#171879

#171879 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.157 H 271.1°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#171879
RGB	rgb(23, 24, 121)
HSL	hsl(239, 68%, 28%)
HSV	hsv(239, 81%, 47%)
CMYK	cmyk(81%, 80.2%, 0%, 52.5%)
CIE-LAB	lab(16.58, 35.35, -54.19)
CIE-LCH	lch(16.58, 64.70, 303.12°)
OKLab	oklab(29.6% 0.0031 -0.1569)
OKLCH	oklch(29.6% 0.157 271.1)
XYZ	xyz(4.1300, 2.2154, 18.2954)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171879 #797817

analogous

#174979 #171879 #471779

triadic

#171879 #791718 #187917

tetradic

#171879 #791749 #797817 #177947

square

#171879 #791749 #797817 #177947

split-complementary

#171879 #794717 #497917

monochromatic

#05051A #0D0E46 #171879 #2122AC #3234D8

Accessibility & contrast

On white

14.55

#171879 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171879 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171879

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171879	#FFFFFF	#000000	##FFFFFF
##171879	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7C

Deuteranopia (green-blind)

#002477

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171879;
/* rgb */ color: rgb(23, 24, 121);
/* oklch */ color: oklch(29.6% 0.157 271.1);

Tailwind

colors: {
  custom: {
    50: '#6857a1',
    500: '#171879',
    950: '#000000',
  },
}

SCSS

$custom: #171879;
$custom-light: #6857a1;
$custom-dark: #000000;

JSON

{
  "hex": "#171879",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 121
  },
  "hsl": {
    "h": 239.388,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.296,
    "c": 0.15694,
    "h": 271.1
  },
  "luminance": 0.02216
}

Semantic roles & 50–950 ramp

primary

#171879

secondary

#AEAD3E

accent

#E93DEB

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07030F

muted

#7A787F

Preview Lab

Preview with #171879

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →